MAX893L
1.2A, Current-Limited, High-Side
P-Channel Switch with Thermal Shutdown
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= 3V, TA= 0°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
IN to GND ................................................................-0.3V to +6V
ON, FAULT to GND .................................................-0.3V to +6V
SET, OUT to GND ...................................... -0.3V to (V
IN
+ 0.3V)
Maximum Continuous Short-Circuit Switch Current .............2.0A
Continuous Power Dissipation (T
A
= +70°C)
SO (derate 5.88mW/°C above +70°C) .........................471mW
Operating Temperature Range
MAX893LESA ...................................................-40°C to +85°C
Storage Temperature Range ........................... -65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
ON = IN, V
IN
= V
OUT
= 5.5V
VIN= 5V, I
OUT
= 500mA
VIN= 3V, I
OUT
= 500mA
VIN= 5V, ON = GND, I
OUT
= 0
VIN= 5V, I
OUT
= 500mA
20% current overdrive, VIN= 5V
V
FAULT
= 5.5V, V
SET
= 1V
VIN= 2.7V to 3.6V
VIN= 2.7V to 5.5V
I
SINK
= 1mA, V
SET
= 1.4V
V
SET
= 1.24V, I
OUT
= 0; VIN= V
OUT
ON = IN, VIN= 5.5V, V
OUT
= 0
Rising edge, 1% hysteresis
VIN= 4.5V
VON= 5.5V
V
SET
required to turn the switch off (Note 1)
VIN= 4.5V to 5.5V
CONDITIONS
µs24Turn-Off Time
µs
115
Turn-On Time
80 200
µs2Fast Current-Loop Response Time
µs5Slow Current-Loop Response Time
µA0.05 1
FAULT Logic Output High Leakage Current
V0.4
FAULT Logic Output Voltage Low
µA0.5 3I
SET
Bias Current
µA0.01 1
ON Input Leakage Current
V
2.4
ON Input Voltage High
µA0.03 1Off-Supply Current
µA13 20
V2.7 5.5Operating Voltage
Quiescent Current
2.0
V0.8
ON Input Voltage Low
A1.8Short-Circuit Current
A1.2
Maximum Programmable Continuous
Output Current Limit
µA0.04 15Off-Switch Current
V2.0 2.4 2.6Undervoltage Lockout
70 125
V1.178 1.240 1.302Current-Limit-Amplifier Threshold
UNITSMIN TYP MAXPARAMETER
VIN= 3.0V
mΩ
88 160
On-Resistance
I
OUT
= 500mA, V
OUT
> 1.6V A/A920 1080 1250I
OUT
to I
SET
Current Ratio